/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0a0f;
    --bg-alt: #111118;
    --surface: #1a1a24;
    --border: #2a2a3a;
    --text: #e4e4ed;
    --text-muted: #8888a0;
    --accent: #6c63ff;
    --accent-glow: rgba(108, 99, 255, 0.15);
    --accent2: #00d4aa;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent2); }

/* ===== Cursor Glow ===== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.nav.scrolled { border-bottom-color: var(--border); }

.nav-logo {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.nav-links { display: flex; gap: 2rem; }

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    padding: 6rem 4rem 4rem;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-family: var(--mono);
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeUp 0.6s 0.2s forwards;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    opacity: 0;
    animation: fadeUp 0.6s 0.4s forwards;
}

.hero-tagline {
    font-family: var(--mono);
    color: var(--accent2);
    font-size: 1.1rem;
    margin-top: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.6s 0.6s forwards;
}

.typing-cursor { color: var(--accent); margin-right: 0.5rem; }

.blink { animation: blink 1s step-end infinite; }

.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
    margin-top: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.6s 0.8s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeUp 0.6s 1s forwards;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    background: #7b73ff;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.4);
}

.btn-outline {
    border: 1px solid var(--border);
    color: var(--text);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ===== Code Block (Hero) ===== */
.hero-visual {
    opacity: 0;
    animation: fadeUp 0.6s 0.6s forwards;
}

.code-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    font-family: var(--mono);
    font-size: 0.85rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border);
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca41; }
.code-title { margin-left: auto; color: var(--text-muted); font-size: 0.8rem; }

.code-content {
    padding: 1.25rem 1.5rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content code { font-family: var(--mono); }

.kw { color: #c792ea; }
.var { color: #82aaff; }
.prop { color: #f07178; }
.str { color: #c3e88d; }

/* ===== Sections ===== */
.section {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.section-alt { background: var(--bg-alt); }

.container { max-width: 1100px; margin: 0 auto; }

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.accent { color: var(--accent); }

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.about-stats { display: flex; flex-direction: column; gap: 1.5rem; }

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all var(--transition);
}

.stat-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(108, 99, 255, 0.1);
}

.stat-icon { font-size: 1.5rem; margin-bottom: 0.5rem; display: block; }
.stat-card h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.stat-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== Skills ===== */
.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }

.skill-category h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    font-family: var(--mono);
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.tag {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: all var(--transition);
}

.tag:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

/* ===== Projects ===== */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon { font-size: 1.8rem; }

.project-links { display: flex; gap: 0.75rem; }

.project-link {
    color: var(--text-muted);
    transition: color var(--transition);
}

.project-link:hover { color: var(--accent); }

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    flex: 1;
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent2);
}

.project-tags span::before { content: '#'; opacity: 0.5; }

/* ===== Contact ===== */
.contact-content { text-align: center; }

.contact-text {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto 2.5rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    color: var(--text);
    transition: all var(--transition);
    font-weight: 500;
}

.contact-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    color: var(--text);
    box-shadow: 0 10px 30px rgba(108, 99, 255, 0.1);
}

.contact-icon { font-size: 1.3rem; }

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
}

/* ===== Scroll Animations ===== */
.section { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.section.visible { opacity: 1; transform: translateY(0); }

/* ===== Animations ===== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 6rem 2rem 4rem;
        min-height: auto;
        gap: 3rem;
    }
    .hero-visual { display: none; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .skills-grid { grid-template-columns: 1fr; }
    .nav-links { gap: 1rem; }
}

@media (max-width: 600px) {
    .hero { padding: 5rem 1.5rem 3rem; }
    .section { padding: 4rem 1.5rem; }
    .nav { padding: 1rem 1.5rem; }
    .nav-links a { font-size: 0.8rem; }
    .hero-cta { flex-direction: column; }
    .contact-links { flex-direction: column; align-items: center; }
    .projects-grid { grid-template-columns: 1fr; }
}